128626367 has 2 divisors, whose sum is σ = 128626368. Its totient is φ = 128626366.

The previous prime is 128626361. The next prime is 128626387. The reversal of 128626367 is 763626821.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (763626821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128626367 - 2¹² = 128622271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128626361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64313183 + 64313184.

It is an arithmetic number, because the mean of its divisors is an integer number (64313184).

Almost surely, 2^128626367 is an apocalyptic number.

128626367 is a deficient number, since it is larger than the sum of its proper divisors (1).

128626367 is an equidigital number, since it uses as much as digits as its factorization.

128626367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 128626367 is about 11341.3564885335. The cubic root of 128626367 is about 504.7891378599.

The spelling of 128626367 in words is "one hundred twenty-eight million, six hundred twenty-six thousand, three hundred sixty-seven".